Biggest Loser US

The new season of players all meet up in the gym and Ali welcomes them. She warns the players that in order to stay on the ranch, they have to spend as much time as possible in the place they are standing.

Irene is taking the elimination of her mother really hard. She is tearful at the thought that everybody else on the ranch has a teammate except her. This is the time she really needs the support from someone like her mom.

The mystery trainers are finally revealed! Cameras show what life has been like at the Unknowns' fitness location. Cara, the female trainer, is ready to bring the fighter out in her contestants. The male mystery trainer, Brett, is a former overweight kid, determined to help save the lives of the players.

The players let Don know that they think Dan and Don intentionally gained weight in an attempt to get eliminated. Marci tries to help Don see just how much his actions affect the rest of the people on the ranch.

Brett is psyched that the Unknowns are heading to the ranch this week to train with the other players. This also the first week Brett and Cara's team is up for elimination if anybody falls below the yellow line.

Ali tells Brett and Cara's players that just because Larialmy went home this week, it doesn't mean Q is on his own. She says they will be all be wearing a red shirt. Ali also tells Bob and Jillian's players that they will be wearing black shirts.

Arthur has a one-on-one conversation with his dad about last week's actions. Arthur tells Jesse he's willing to do whatever it takes to stay on the ranch, but Jay and Jennifer are still a threat. Arthur knows he needs to keep his mouth shut this week and just pull big numbers.

The Black Team joins the Red Team in the Elimination Room after the weigh-in. Ali tells both teams that there will be two players eliminated from the ranch this week. Not only will the team with the lowest weight loss percentage have to eliminate a player, but there will also be a red line for the player with the lowest percentage of weight loss.

After the elimination, Ali points out that it's obvious that family is more important than anything. Ali asks the Red Team to join the Black Team to tell everyone they're going home for two whole weeks! The players are moved to tears at the idea of seeing their loved ones.

After last week's heartbreaking elimination of Arthur, Ali tells the teams that they must each pick a captain. The Red Team makes the obvious choice -Justin; the Black Team chooses Marci. Ali pulls the captains aside to give them their first bound-to-be controversial assignment -make two decisions without consulting their team.

After the Black Team's devastating loss of Sarah, Ali acknowledges it's been a tough week -but the good news is this week, they'll have a little help. She brings in the Red Team to explain -this week there will only be one team: the Blue Team!

It's instantly apparent that something's about to happen... because Alison's in the gym, and she's never in the gym. A wall slides back to reveal four colored dots on the floor -the players are about to be split into four teams of three, one team per trainer

After the weigh-in, Kaylee decides she needs to make a statement to the entire house, so they can get past what happened and move on. She's decided to trust there's a reason why she's still on the ranch. Hannah reminds Kaylee that everyone wants to get to where she's at -feeling strong and ready to go home.

Since Jenn was automatically eliminated last week, Brett's focus is 100% on Courtney. He has to make sure she stays on the ranch, so that he stays on the ranch as well. Feeling the pressure, Courtney reaches out to Olivia, Irene and Hanna -it's hard to ask, but she may need them this week.

Last week's elimination was heartbreaking -losing Courtney and Brett -so directly afterwards, Allison delivers an incredible surprise. For the next two weeks the contestants will continue the game... in New Zealand!

Alison meets the contestants on a bluff over the water at Queenstown, New Zealand, to tell them about the desire to achieve. New Zealand resident Sir Edmund Hilary was the first man to climb Mount Everest. Now, they'll climb their own mountains alone.

After the amazing trip to New Zealand, everyone's glad to get back to the ranch... except for Austin, who's really missing his dad Ken after last week's elimination. Austin's really feeling the pressure now -if he's eliminated this week, he'll feel as if he really failed his dad.

The contestants are walking to the gym when they hear an unusual sound... the clip-clop of horses, pulling a carriage fit for Cinderella. Screaming, Hannah's the first to figure it out -Tim Gunn has come to the ranch for Makeover Week!

The players can't believe they've made it to Week 19 -the week they'll learn who makes it to the Final Four. Hannah's amazed to find a huge shirt she wore during Week 1 -now both she and Olivia can fit in it together!

Directly after last week's elimination, Alison congratulates the Final Four -Hannah, Irene, Jay and Olivia! There's just one more week to go... As half of the Final Four, Olivia and Hannah have decided that their Purple Team stands for people that don't fit into a perfect box.

Five months ago, Irene, Jay, Olivia and Hannah were overweight and desperate to change their lives. Since then, they endured the longest season in Biggest Loser history to get to the live finale! Tonight, the eliminated players will weigh in for a chance to win the $100,000 at-home prize.